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| 西铂莱恩 | 2011-09-16 14:20 |  
| glass selection
Glass selection tends to be both a science and an art.  It is the intent of this paper to remove the  iSCkV2 "mystique" surrounding glass selection, primarily based on the chromatic properties of the glass,  !^%3
 and to show via careful parametric analyses how we can optimally select glasses for lenses of  !G-+O#W`
 different f/numbers, spectral bands, and performance requirements.  The important roles of  rJ	Jx8)M
 refractive index and Abbe number as well as partial dispersion will be considered. Using the  vW=-RTRH
 SCHOTT glass map, six separate and identifiable regions along with glasses within each region  'nq=xi@RC
 will be discussed.  The goal for this paper is to make glass selection easier to understand.
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